Oral Vitamin B12 Side Effects vs B12 Injection Side Effects What Are B12 Shots? 5 Benefits and Side Effects VITAMIN B12 INJECTIONS Symptoms of a B12 Deficiency can include difficulty thinking and remembering Fatigue Heart palpitations Paleness Mood changes Trouble sleeping Vitamin Vitamin B12 Injection: Uses, Benefits, and Side Effects Shapins Clinic Now offering B12 injections! Available as a cash pay service for $25 at all Springfield locations. Stop in and ask our clinical team today! B12 Shots at Home: How, Where & How Often to Inject Yourself AZ IV Medics